# STC SA870NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Disharoon, Jerry B., United States
- Description: Installation of a PA-22 engine baffles, a PA-18 front mounted oil cooler, modified PA-14 cowling, and a PA-22 carburetor air box
- Applied: November 13, 1979
- Status date: December 19, 1979
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-780](https://openairdocs.org/tcds/A-780)
- Certificate PDF: https://openairdocs.org/files/sha256/26/bb/26bb9817626bafe010e2105acdbaf27d2129366f5345a7c66c3305c158658de2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/110B2619208A29BA86257A3E004FF6C8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA870NW

## ADs that name it (0)

None.

## Approved models (1)

- FS 2003 Corp. PA-12 ([TCDS A-780](https://openairdocs.org/tcds/A-780))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA8T0NW This certificate issued to: Jerry Disharoon Part 3 of the Civil Air Regulations.

Original Product - Type Certificate Number: A-780 Make: Piper Model: PA-12 Description of Type Design Change: Installation of a PA-22 engine baffles, a PA-18 front mounted oil cooler, modified PA-14 cowling, and a PA-22 carburetor air box in accordance with Jerry Disharoon photographs 1 through 7.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Piper PA-12, Serial Number 12-106 only. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: November 13, 1979 Date Reissued:

Date of Issuance: . December 19, 1979 Date Amended:

FEDERAL AVIATION Chartes Catchroedes (Signature ) TAMINISTRATOD Chief, Engineering and Manufacturing Branch (Title)

47.

## Every issue (1)

- December 19, 1979: Issued, Current. [certificate](https://openairdocs.org/files/sha256/26/bb/26bb9817626bafe010e2105acdbaf27d2129366f5345a7c66c3305c158658de2)

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